Cheesy Cauliflower Casserole

User Reviews

5

132 reviews
Excellent
  • Prep Time

    15 mins

  • Cook Time

    15 mins

  • Total Time

    30 mins

  • Servings

    6 servings

  • Calories

    167 kcal

  • Course

    Side Dish

  • Cuisine

    American

Cheesy Cauliflower Casserole

This Cheesy Cauliflower Casserole combines roasted cauliflower florets with a creamy sour cream-based sauce flavored with mustard, garlic, cayenne, and sharp cheddar. After roasting, the cauliflower is mixed with the sauce, topped with more cheddar cheese, and baked until melted and bubbly. Bacon bits and scallions add savory garnishes that enhance its rich texture and flavor.

Description

Large cauliflower florets are roasted until tender-crisp and lightly seasoned with salt and pepper. This roasting brings out a subtle nuttiness while maintaining some texture. The florets are then combined with a mixture of sour cream, milk, Dijon mustard, minced garlic, a pinch of cayenne, and half the shredded cheddar cheese to form a creamy, flavorful base.

The mixture is transferred to a baking dish, topped with the remaining cheddar, and baked just until the cheese melts. The casserole finishes with a garnish of bacon bits and thinly sliced scallions, providing smoky and fresh contrasts to the creamy cauliflower.

This casserole can serve as a comforting side dish, and by adding cooked shredded chicken, it becomes a complete meal. It stores well in the fridge for several days and reheats gently in the microwave. Frozen cauliflower can be used but requires longer roasting time.

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Ingredients

Servings
  • 1 cauliflower large, cut into small florets; 1.5 pounds of florets, head
  • olive oil spray form
  • 1 teaspoon kosher salt or ½ teaspoon of any other salt, including Morton kosher salt, Diamond Crystal brand
  • ¼ teaspoon black pepper
  • ½ cup sour cream
  • 2 tablespoons milk whole
  • 1 teaspoon Dijon mustard
  • 1 teaspoon garlic minced, fresh
  • Pinch cayenne pepper
  • 1 cup cheddar cheese sharp, shredded, divided; 4 ounces total

Garnish:

  • 2 tablespoons bacon bits
  • 2 tablespoons scallions green parts, thinly sliced

Instructions

  1. Preheat the oven to 425°F. Line a rimmed baking sheet with parchment paper.
  2. Arrange the cauliflower florets on the baking sheet. Liberally spray them with olive oil and season them with kosher salt and black pepper. Roast the cauliflower for about 12 minutes, until tender-crisp.
  3. Meanwhile, in a large bowl, mix the sour cream, milk, Dijon, garlic, cayenne, and ½ cup cheddar.
  4. When the cauliflower is done, add it to the sour cream mixture and mix to combine. 
  5. Transfer the mixture to a greased 1.5-quart baking dish. Top with the remaining shredded cheddar. Return the baking dish to the oven and bake just until the cheese is melted, for about 10 minutes.
  6. Sprinkle the casserole with the bacon bits and scallions and serve.

Notes

  • Adding cooked shredded chicken transforms this into a hearty main dish; increase sour cream accordingly.
  • Frozen cauliflower can substitute fresh but requires about 30 minutes roasting without needing browning.
  • Leftovers keep well refrigerated for 3-4 days and reheat gently at half microwave power.
  • Freezing this casserole is not recommended due to texture changes.

Nutrition Information

Show Details
Serving 0.5cup Calories 167kcal (8%) Carbohydrates 7g (2%) Protein 8g (16%) Fat 12g (18%) Saturated Fat 6g (30%) Sodium 414mg (17%) Fiber 3g (12%) Sugar 2g (4%)

Nutrition Facts

Serving: 6servings

Amount Per Serving

Calories 167 kcal

% Daily Value*

Serving 0.5cup
Calories 167kcal 8%
Carbohydrates 7g 2%
Protein 8g 16%
Fat 12g 18%
Saturated Fat 6g 30%
Sodium 414mg 17%
Fiber 3g 12%
Sugar 2g 4%

* Percent Daily Values are based on a 2,000 calorie diet.

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User Reviews

Overall Rating

5

132 reviews
Excellent

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